Postulated failure analyses of a spread-moored semi-submersible

Chandrasekaran, S.; Uddin, Syed Azeem

doi:10.1007/s41062-020-0284-2

Cited by 12 publications

(2 citation statements)

References 12 publications

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“…One of the most obvious of these applications is offshore oil production, which presents a substantial challenge to the product designer or offshore engineer [81][82][83]. Environmental loadings [84][85][86][87][88], hydrodynamics [89][90][91][92][93][94][95][96], hydroelasticity [97], corrosion [98], failure analysis [99], ocean wave mechanics [100][101][102][103][104][105][106][107][108], fluid content loadings [109][110][111][112][113][114][115], fatigue limits [116][117][118][119][120], reliability [121][122][123][124][125][126][127][128], and so on are all factors to consider ...…”

Section: Introductionmentioning

confidence: 99%

Review on Fixed and Floating Offshore Structures. Part II: Sustainable Design Approaches and Project Management

Amaechi

Reda

Butler

et al. 2022

JMSE

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Offshore structures exist in a variety of forms, and they are used for a variety of functions in varied sea depths. These structures are tailored for certain environments and sea depths. Different actions for suitable equipment selection, platform type design, and drilling/production processes are required for the applications of these offshore structures, as given in Part I. This paper is the second part, which outlines various processes, loads, design approaches and project management of offshore platforms. To achieve these, proper planning must be conducted for lifting, transportation, installation, design, fabrication, and commissioning of these offshore platforms. Some historical developments of some offshore structures are presented, and some project planning routines are undertaken in this research. The ultimate goal is to provide a general overview of the many processes of offshore platform design, construction, loadout, transportation, and installation. Some discussions on the design parameters such as water depth and environmental conditions were presented. It also lists various software programs used in engineering designs. The review also includes information on cutting-edge offshore platforms and industry advancements. Ultimately, for long-term operations, various types of offshore platforms for specific seawater depths are available.

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Section: Introductionmentioning

confidence: 99%

Review on Fixed and Floating Offshore Structures. Part II: Sustainable Design Approaches and Project Management

Amaechi

Reda

Butler

et al. 2022

JMSE

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“…Another paper discussed about mooring line its paper from [8]. In this paper its discussed about postulated failure analysis of a semi submersible in 1500 m water depth in Gulf of Mexico, installed with two other mooring namely spread catenary and taut mooring.…”

Section: Introductionmentioning

confidence: 99%

Fatigue Life Prediction of Mooring Line on Indonesian Tsunami Early Warning Systems (Ina-TEWS) Buoy

Priohutomo¹,

Nugroho²,

Arianti³

et al. 2022

IOP Conf. Ser.: Earth Environ. Sci.

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Ina-Buoy Gen 3.1 is one of the application of the program that has been developed by BPPT (Agency for the Assessment and Application of Technology) in order to reduce the risk of a tsunami disaster in Indonesia. This Indonesian Buoy for Tsunami Early Warning System (INATEWS - Buoy) consists of a tsunami buoy, an ocean bottom unit (OBU), a satellite and a ground station. This paper discuss about calculation of fatigue life due to wave loads for the mooring line that used to hold the buoy position in the sea. A taut mooring system is applied to the buoy until sinker at seabed. Calculation of operational tension at mooring line obtained using numerical simulation fully licensed software Orcaflex ver 11 owned by Centre Technology for Maritime Industrial Engineering (PTRIM), BPPT with wave input of Hs=2.5m and Tp=10.5sec. The depth of sea is varied at 2088m (Sunda Strait), 3563m (Cilacap Sea) and 4082m (Bali Strait). By knowing those tension forces, stress at time history on the mooring line can be obtained. This stress time history is then applied to Palmgren – Miner formula that based on SN-Curve of the mooring line material to predict the life of the mooring line. By applying a safety factor of 2.5 it is found that the fatigue life of the mooring line at water depth of 2088m in Sunda Strait is 6,9 years, then, at water depth of 3563 m in Cilacap Sea is 15,8 years, finally at water depth of 4082 m in Bali Strait is 10 years.

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Dynamic Analysis of a Symmetrically Moored Semisubmersible Under Various Possible Mooring Combinations

Uddin,

Tousif

2024

J. Marine. Sci. Appl.

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Postulated failure analyses of a spread-moored semi-submersible

Cited by 12 publications

References 12 publications

Review on Fixed and Floating Offshore Structures. Part II: Sustainable Design Approaches and Project Management

Review on Fixed and Floating Offshore Structures. Part II: Sustainable Design Approaches and Project Management

Fatigue Life Prediction of Mooring Line on Indonesian Tsunami Early Warning Systems (Ina-TEWS) Buoy

Dynamic Analysis of a Symmetrically Moored Semisubmersible Under Various Possible Mooring Combinations

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